Niven Numbers in Ruby in chars. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 71st AlephSquirrel 744 39 37ms 7 Mar 2023 71st aaronze 🇦🇺 744 39 37ms 17 Sep 2023 71st TheZwierzLF 🇵🇱 744 39 35ms 17 Dec 2025 84th segiddins 725 40 37ms 24 Aug 2018 84th TFeld00 🇩🇰 725 40 35ms 7 Jun 2019 84th flavono123 725 40 40ms 16 Jul 2019 84th snltd 725 40 35ms 14 Aug 2019 84th n1LS 725 40 37ms 23 Oct 2019 84th jstanley0 725 40 35ms 13 Dec 2020 84th Marin-Kitagawa 725 40 38ms 18 Jul 2021 84th Luj8n 725 40 36ms 12 Nov 2021 84th HallMatthew314 725 40 38ms 5 Dec 2021 84th fynnkroeger 725 40 38ms 30 Apr 2022 84th Ralac07 🇦🇺 725 40 35ms 4 Jul 2024 84th albanian-laundromat 725 40 39ms 1 Oct 2025 84th lacrosse 725 40 35ms 29 Nov 2025 84th Thinkr1 725 40 35ms 11 days ago 98th hugolgst 707 41 35ms 18 May 2019 98th FnControlOption 707 41 39ms 21 Aug 2022 100th 0xddom 690 42 38ms 18 Dec 2019 100th jamespeilunli 690 42 38ms 1 May 2022 100th purp 690 42 37ms 9 Aug 2022 103rd robymus 674 43 37ms 17 Sep 2018 104th esmg1 659 44 39ms 22 Aug 2018 104th annaproxy 659 44 37ms 27 Aug 2022 106th tadd 644 45 36ms 16 Apr 2020 106th pandapawskat 644 45 37ms 7 Oct 2021 106th a-apple1234 644 45 38ms 14 Feb 2023 109th idoschor 630 46 35ms 28 Dec 2020 110th reireias 617 47 37ms 31 Jul 2019 111th jacobsmith 580 50 35ms 19 May 2018 112th galloj 🇨🇿 527 55 38ms 18 Aug 2022 112th sreedevk 🇺🇸 527 55 36ms 4 Dec 2022 114th Mortis66666 509 57 36ms 3 Jun 2022 115th catflip 483 60 37ms 18 Oct 2023 116th kenakingkong 460 63 35ms 4 May 2021 117th MiranDaniel 🇨🇿 433 67 35ms 1 Sep 2023 118th boxjelly 426 68 37ms 12 Feb 2021 119th atayarani 414 70 36ms 18 Jan 2019 119th HumanoidCPU 414 70 36ms 10 Jan 2025 121st yokasuretsu 392 74 35ms 3 May 2018 122nd graemewalters 372 78 38ms 25 Mar 2019 122nd msbranicky 372 78 35ms 8 Sep 2023 124th michaelrychly 358 81 37ms 5 Jun 2019 125th matricronia 341 85 37ms 6 May 2021 126th JRaspass 🇬🇧 302 96 35ms 19 May 2018 126th retrohun 302 96 36ms 21 Dec 2018 126th ninjawarrior1337 302 96 38ms 1 Dec 2021 126th KatieLG-Transpiler 🇬🇧 302 96 37ms 24 Jun 2022 126th Mabeloid 🇳🇴 302 96 43ms 22 Sep 2024 126th CaedenHarper 🇨🇦 302 96 34ms 16 Aug 2025 132nd zstearman3 279 104 38ms 13 Jul 2018 133rd mokymok 🇺🇸 227 128 36ms 9 Nov 2021 First Prev 81–133 of 133